General Contractor Assistant Jobs in Rialto, CA (NOW HIRING)

Position Title: Assistant Commercial Construction Project Supervisor (Tenant Improvement)
Company Name: RMC Facilities Services, Inc.
Pay Range: $30-$45/hr, depending on experience
Location: Southern California
Industry: General Construction (Commercial, Retail)

RMC Facilities Services, Inc. is looking for a hands-on, detail-oriented Assistant Commercial Construction Project Supervisor (Tenant Improvement) to oversee day-to-day operations at construction sites throughout Southern California. This full-time role is ideal for someone with working knowledge of construction trades, scheduling, and site managementespecially those who thrive in dynamic environments that include night and weekend work. As a Project Supervisor, youll be the boots-on-the-ground leader ensuring quality craftsmanship, subcontractor coordination, and jobsite safety while keeping projects on time and within scope.

RMC Facilities Services, Inc. is a full-service general contractor with over 50 years of experience in the construction industry. As a Southern California-based Certified Women Business Enterprise (WBE), were proud to deliver high-quality tenant improvements, commercial buildouts, and facility management solutions across the region. We are a people-first organization offering room for growth, a strong team culture, and a competitive benefits package that reflects our commitment to our employees' well-being.

Learn more at: www.rmcfs.com

• Oversee and manage tenant improvement (TI) projects including carpeting replacement, furniture moving, and interior painting from start to completion.

• Manage daily field operations at job sites, ensuring work aligns with project schedules and quality standards

• Communicate effectively with clients, subcontractors, and internal team members

• Conduct quality control checks and ensure contractor compliance with safety regulations

• Lead and document daily safety meetings and maintain a safe work environment

• Monitor and document job progress using daily reports and photos

• Review project plans, subcontractor scopes, RFIs, and submittals

• Coordinate inspections and communicate with city officials as required

• Travel between multiple job sites during day or night shifts

• Secure permits when needed and ensure all site requirements are met

• Identify and resolve field issues to keep the project on track

• Provide direct support to Project Managers and escalate issues when necessary

• Minimum 2 years of experience in construction or field supervision

• High school diploma or GED required

• Solid understanding of commercial construction trades and terminology

• Ability to read and interpret blueprints, plans, and specifications

• Familiar with OSHA safety standards and site compliance procedures

• Proficient in Microsoft Office Suite; familiarity with MS Project a plus

• Available for night and weekend work as required

• Strong communication, leadership, and problem-solving skills

• Self-motivated, detail-oriented, and capable of working independently

• A professional review and drug screening will be completed as part of the onboarding process, in compliance with applicable laws.

• Medical, Dental, and Vision Insurance

• Life Insurance and Disability Coverage Options

• Safe Harbor 401(k) Retirement Plan

• Paid Time Off vacation, sick leave, and holidays

• Bi-Weekly Pay Cycle

• Annual Bonus Eligibility (based on company performance)

• Travel Per Diem for Eligible Projects

• Uniforms Provided, Company Events, and Performance Incentives

• Tech package (smartphone/tablet)

• Full-Time With frequent night and weekend work

• Overtime available depending on project demands.

• Job sites are located across Southern California. This position requires frequent travel between project locations. Mileage and travel expenses are reimbursed per company policy.

We are proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other legally protected status.

A professional review and drug screening will be completed as part of the onboarding process, in compliance with applicable laws.